/*
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 * To change this template file, choose Tools | Templates
 * and open the template in the editor.
 */
package servlet;

import ejb.BusinessLogicLocal;
import entity.News;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.List;
import javax.ejb.EJB;
import javax.servlet.RequestDispatcher;
import javax.servlet.ServletContext;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

/**
 *
 * @author micheleprola
 */
public class ServletNews extends HttpServlet {

    @EJB
    private BusinessLogicLocal businessLogic;

    /**
     * Processes requests for both HTTP <code>GET</code> and <code>POST</code>
     * methods.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    protected void processRequest(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        ServletContext sc = getServletContext();
        response.setContentType("text/html;charset=UTF-8");
        String op = request.getParameter("op");
        try (PrintWriter out = response.getWriter()) {
            /* TODO output your page here. You may use following sample code. */
            if (op.equals("tuttenews")) {
                List<News> n = businessLogic.readNews();
                request.setAttribute("listanews", n);
                RequestDispatcher rd = sc.getRequestDispatcher("/News.jsp");
                rd.forward(request, response);
            } else if (op.equals("singolanews")) {
                Long id = Long.decode(request.getParameter("id"));
                News nw = businessLogic.getNews(id);
                request.setAttribute("news",nw);
                RequestDispatcher rd = sc.getRequestDispatcher("/SingleNews.jsp");
                rd.forward(request, response);
                
            } else if (op.equals("newsbox")) {
                List<News> n = businessLogic.readNews();
                request.setAttribute("listanewsbox", n);
                RequestDispatcher rd = sc.getRequestDispatcher("/right-content.jsp");
                rd.include(request, response);
            } 
        }
    }

    // <editor-fold defaultstate="collapsed" desc="HttpServlet methods. Click on the + sign on the left to edit the code.">
    /**
     * Handles the HTTP <code>GET</code> method.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doGet(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /**
     * Handles the HTTP <code>POST</code> method.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doPost(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /**
     * Returns a short description of the servlet.
     *
     * @return a String containing servlet description
     */
    @Override
    public String getServletInfo() {
        return "Short description";
    }// </editor-fold>

}
